publishing.co.uk
Audit 1 · Production · Live

Will your book pass KDP review
on the first try?

Free 60-second pre-flight audit. We run the same 30+ checks Amazon does against your PDF — line by line — and email you a /100 score with every issue flagged. No payment, no signup.

Free · 60 seconds · No payment

Before you pay anyone — score it free first.

Drop your manuscript PDF and we run the same 30+ checks Amazon does, line by line, in under a minute. You get a clear /100 score, every failure point flagged, and the exact fix for each one.

Whether you book us, do it yourself, or hire someone else — running this first means you don't pay for a service you didn't need.

  • Margins & gutter
  • Image DPI
  • Font embedding
  • ToC links
  • Blank pages
  • ISBN match
  • Bleed configuration
  • Page-count rules
  • Spine width
  • EPUB validation
  • 20+ more checks
  • Per-file PDF report
Step 1 · Production

KDP Readiness Score

"Will my book pass KDP review?"

  • Files encrypted in transit (TLS 1.3)
  • Scanned on a UK server — never sent to OpenAI, Claude, Google or any third party
  • Auto-deleted after 24 hours · deletion logged for audit trail
  • Held under mode 0600 — only the audit worker can read them
  • Independent ClamAV malware scan on every upload
  • One audit per file — no caching, no retention beyond 24h
Read the full data-handling policy →

We email your /100 score + per-rule report here. No spam — one email per audit.

Your manuscript PDF*

PDF only · up to 200 MB · deleted within 24 hours · UK server

What the score actually checks

The same 30+ checks Amazon's KDP system runs on every file you upload — but you get to see the answer before they do.

Margins & gutter

Scales by page count. 0.375" gutter for 24-150pp, up to 0.875" for 700-828pp.

Image DPI

Every image checked against KDP's 300 DPI minimum. Flags upscaled stock photos.

Font embedding

Every font in the PDF traced to its embed status. Missing fonts = guaranteed rejection.

ToC links

Every entry in the table of contents tested against its target. Broken links are common.

Blank pages

Page count must be even on print. Blank-page conventions for new-chapter recto starts.

ISBN match

ISBN in metadata vs ISBN on the copyright page. Single most missed cause of rejection.

Bleed configuration

If content runs to the edge, bleed must be 0.125". If it doesn't, bleed must be off.

Spine width

Calculated from final page count and paper weight. Wrong spine = cover rejected.

EPUB validation

Full EPUB 3.0 validator pass. Manifest, OPF, NCX, accessibility metadata.

Page-count rules

Min 24 / max 828 (B&W white), 72-600 (standard colour). Trim-size specific.

Trim consistency

Cover, interior and metadata all declare the same trim size. Mismatch = manual review.

20+ more

Including footnote anchors, line spacing, paragraph-style consistency, copyright-page completeness, content/quality flags.

While you're here — run the other two

If your book is already on Amazon, these two are live and free right now.

Last reviewed May 2026 · Reviewed by the publishing.co.uk team